Floor jack



FIG. 1 is a left perspective view of the floor jack according to the present design;

FIG. 2 is a front view of the floor jack as shown in FIG. 1;

FIG. 3 is a rear view of the floor jack as shown in FIG. 1;

FIG. 4 is a right side view, the left side view being a mirror image thereof of the floor jack as shown in FIG. 1;

FIG. 5 is a top view of the floor jack as shown in FIG. 1; and,

FIG. 6 is a bottom view of the floor jack as shown in FIG. 1.

The broken lines in FIGS. 1-6 are for the purpose of illustrating portions of the floor jack that form no part of the claimed design. 

CLAIM The ornamental design for a floor jack, as shown and described. 